--- In TekScopes@..., Bill R <bill1904@...> wrote:
Christian,
BAMA has the 585 manual. A 581 is like a 585 but has only one
timebase.
The vertical amps will be the same, and the power supplies will be very
close.
The one sweep on the 581 will be the same as "A" sweep on the 585.
Right: To use letter series plug-ins with a 581 you need an adapter
plug-in, type 81.
The plug-in of choice for the 581 is the type 82, a dual channel.
Single channel is type 86.
Both 581 and 585 came in "A" versions.
Good luck!
Bill R
Christian A Weagle wrote:
Good day,
A friend of mine has offered me two tube scopes of unknown provenance,
he believes however that they are not working. They are
Type 581 Serial #001067
Type 535A Serial #025668
BAMA has provided me with manual for the 535A (even seems to be the
right vintage), but I came up short on the 581 - any pointers? I
don't know what/if any plugins will be coming (the scopes are
currently a long way away from both of us).
This will be my first foray into the earlier offerings from Tek. I
understand that both of these scopes will use letter and 1-series
plugins, the 581 needing the 81 adapter. Any other gotchas? I will
of course peruse the archives, but I would welcome any tips useful to
someone used to working on 7000-era gear. Ahh, yes, I know that the
voltages tend to be a bit higher, and that I probably could stand to
get a 100x probe!
So what is your total cost for these (even if they are for free,
shipment or petrol costs...)?
"Non working" could mean one or more of the following faults, which
WILL require either unusual spare parts or workarounds:
CRT gassy or out of geometry. Defective mains transformer (mainly
heater winding insulation). Defective EHT transformer (people have
probably talked up a book about that here). Defective time relay (not
easily obtained). Several capacitors leaky (depends on the brand and
charge used at time of production it seems). All kinds of fan trouble
(stuck fans, worn bearings, inoperative motors, soccer hooligans...).
Some other things I have not thought of.
Also see the advice I solicited here a few weeks ago about bringing up
a 500 series (a 555 in that case, which I have since then powered up
but not gotten completely operational yet...)
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